Circuit breaker manual operating device

Abstract

The utility model discloses a kind of circuit breaker manual operating devices, including seat and operating element, the seat is equipped with lock hole, the operating element is equipped with lock pin, when the lock pin is inserted in the lock hole, the operating element and the seat are mutually locked, the operating device further includes driving unit and transmission part, the operating element can drive the driving unit rotates around the first pivot axis relative to the seat, the driving unit has blocking part, the driving unit can rotate within preset angle relative to the operating element to make it relative operating element have first and second state, in the first state, the blocking part and the lock pin are staggered along the axial direction of the lock pin;Second state, the blocking part is blocked in the side of the lock pin to the seat movement;Transmission part is rotatably arranged around second pivot axis, the transmission part is connected with the handle of circuit breaker, the transmission part and the driving unit are linked to set, and operating device is high in security.

Description

Technical Field

[0001] This utility model relates to a manual operation device for a circuit breaker. Background Technology

[0002] In existing technology, operators can use the handle of a manual operating device to open and close circuit breakers. Some manual operating devices have a padlock function to lock the handle and prevent accidental operation. After a circuit breaker has undergone welding, even if the operating mechanism is used to perform a opening operation, the circuit breaker contacts remain energized. In this situation, to ensure safety, it is necessary to prevent the operator from using the padlock. However, most operating devices do not have this function, thus creating a safety hazard when a circuit breaker undergoes welding. Utility Model Content

[0003] The purpose of this invention is to provide a new manual operation device for circuit breakers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a manual operating device for a circuit breaker, comprising a base and an operating component rotatably mounted on the base about a first axis of rotation. The base has a locking hole, and the operating component has a locking pin that can move along its own axial direction. When the locking pin is inserted into the locking hole, the operating component and the base are locked together. The operating device further includes:

[0005] The driving unit, wherein the operating member is provided with a driving structure for driving the driving unit to rotate relative to the base about the first rotation axis, the driving unit has a blocking part, the driving unit is rotatably disposed relative to the operating member within a preset angle, the driving unit has a first state and a second state relative to the operating member, when in the first state, the blocking part is offset from the locking pin along the axial direction of the locking pin; when in the second state, the blocking part is blocked on the side of the locking pin moving towards the base;

[0006] The transmission component is rotatably arranged around a second axis of rotation, the first axis of rotation and the second axis of rotation are parallel to each other, the transmission component is connected to the handle of the circuit breaker, and the transmission component is linked to the drive unit.

[0007] In some embodiments, the drive unit includes a drive shaft, the axis of which is parallel to the first rotation axis and the second rotation axis, respectively, and the transmission member is provided with a slot, in which the drive shaft is movably inserted.

[0008] In some embodiments, the slot includes a first extension segment extending along a first straight line direction and a second extension segment extending along a second straight line direction, the first straight line direction intersecting the second straight line direction, and the slot further includes an intermediate segment connected between the end of the first extension segment and the end of the second extension segment, the intermediate segment being arc-shaped.

[0009] In some embodiments, the transmission member has a first position and a second position. When in the first position, the circuit breaker handle is in a closed state and the drive shaft is located in the first extension section. When in the second position, the circuit breaker handle is in an open state and the drive shaft is located in the second extension section.

[0010] In some embodiments, the first extension and the second extension form an obtuse angle.

[0011] In some embodiments, the transmission member has a first position and a second position. When the transmission member moves from the second position to the first position, the handle of the circuit breaker changes from an open state to a closed state, and the drive unit changes to the second state.

[0012] In some embodiments, the operating device is provided with an elastic element for providing the force required to drive the transmission member from the second position to the first position.

[0013] In some embodiments, the operating device includes a retainer disposed between the operating member and the drive unit, the retainer being configured to provide the force required to drive the drive unit to transition to the first state.

[0014] In some embodiments, one of the operating member and the driving unit is provided with a movable slot, and the other is provided with an insert. The central angle corresponding to the extension range of the movable slot around the first rotation axis is the preset angle. The insert is movably inserted into the movable slot so that the driving unit can rotate relative to the operating member within the preset angle range.

[0015] In some embodiments, the operating member has a mounting cavity, the driving unit has a plug-in portion, the plug-in portion is rotatably disposed in the mounting cavity about the first rotation axis; the outer periphery of the mounting cavity is provided with the movable groove, and the outer periphery of the plug-in portion is provided with the insert.

[0016] In some embodiments, a plurality of inserts are spaced apart on the outer periphery of the plug-in portion, and a plurality of movable slots are spaced apart on the outer periphery of the mounting cavity, with the plurality of inserts respectively inserted into the plurality of movable slots.

[0017] In some embodiments, the transmission element includes a drive groove offset from the second axis of rotation, and the handle of the circuit breaker is inserted into the drive groove.

[0018] In some embodiments, the transmission component includes a first transmission part and a second transmission part fixedly disposed thereon, the first transmission part and the second transmission part being distributed at intervals along an extension direction parallel to the second rotation axis, the first transmission part being linked to the drive unit, and the second transmission part being connected to the handle of the circuit breaker.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The manual operating device for the circuit breaker of this utility model allows the operator to control the circuit breaker handle by rotating the operating component, thereby driving the drive unit to rotate, which in turn drives the transmission component to rotate. When the circuit breaker experiences welding, controlling the circuit breaker to open via the operating device will cause the circuit breaker handle to tend towards the closing state. Since the transmission component is connected to the handle, the handle will drive the transmission component to rotate, which in turn will drive the drive unit to rotate. Because the drive unit can rotate relative to the operating component within a preset angle and has a first state and a second state relative to the operating component, after experiencing the above-mentioned motion transmission, the drive unit will switch to the second state due to the drive of the handle, thereby causing the blocking part to be positioned on one side of the locking pin, preventing the locking pin from being inserted into the lock hole, avoiding the operator from engaging the lock, and eliminating safety hazards. Attached Figure Description

[0020] Appendix Figure 1 This is a three-dimensional structural diagram of the operating device according to a specific embodiment of the present utility model;

[0021] Appendix Figure 2 For the appendix Figure 1 Schematic diagram of the central seat;

[0022] Appendix Figure 3 This is a schematic diagram of the operating element, drive unit, and transmission element according to a specific embodiment;

[0023] Appendix Figure 4 This is a schematic diagram of the operating components and drive unit according to a specific embodiment;

[0024] Appendix Figure 5 This is a schematic diagram of an operating component according to a specific embodiment;

[0025] Appendix Figure 6 This is a schematic diagram of a driving unit according to a specific embodiment;

[0026] Appendix Figure 7 For the appendix Figure 6 A diagram from another perspective;

[0027] Appendix Figure 8 This is a schematic diagram of a transmission component according to a specific embodiment;

[0028] Appendix Figure 9 For the appendix Figure 8 A diagram from another perspective;

[0029] The components are as follows: 1. Base; 10. Lock hole; 11. Mounting plate; 2. Operating component; 21. Locking pin; 22. Movable groove; 23. Mounting cavity; 24. Button; 25. Padlock hole; 3. Drive unit; 31. First drive component; 311. Blocking part; 312. Through hole; 313. Insertion part; 32. Second drive component; 321. Clearance groove; 33. Drive shaft; 34. Insertion component; 4. Transmission component; 41. Slot; 411. First extension section; 412. Second extension section; 413. Intermediate section; 42. First transmission part; 43. Second transmission part; 44. Drive groove; 5. Elastic component. Detailed Implementation

[0030] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments, so that the advantages and features of this utility model can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0031] See Figure 1 The circuit breaker manual operating device shown includes a base 1 and an operating component 2 rotatably mounted on the base 1 about a first rotation axis X1. See also... Figure 2 , Figure 5 As shown, the base 1 has a locking hole 10, and the operating member 2 has a locking pin 21 that can move along its own axial direction. In this embodiment, the axis of the locking pin 21 is parallel to the first rotation axis X1. When the locking pin 21 is inserted into the locking hole 10, the operating member 2 and the base 1 are locked together. See also Figure 3 As shown, the operating device also includes a drive unit 3 and a transmission component 4. The operating component 2 is equipped with a drive structure for driving the drive unit 3 to rotate relative to the base 1 around a first rotation axis X1, thereby enabling the drive unit 3 to rotate via the operating component 2. In this embodiment, the drive unit 3 has a blocking part 311. The drive unit 3 is rotatably arranged relative to the operating component 2 within a preset angle, allowing the drive unit 3 to have a first state and a second state relative to the operating component 2. In the first state, the blocking part 311 and the locking pin 21 are offset from each other along the axial direction of the locking pin 21, allowing the locking pin 21 to move axially. In the second state, the blocking part 311 blocks the side of the locking pin 21 that moves towards the base 1, preventing the locking pin 21 from moving towards the base 1 and thus preventing the locking pin 21 from being inserted into the lock hole 10.

[0032] In this embodiment, the transmission component 4 is rotatably arranged around the second rotation axis X2. The first rotation axis X1 and the second rotation axis X2 are parallel to each other. The transmission component 4 is connected to the circuit breaker handle and is linked with the drive unit 3. When the operator drives the drive unit 3 to rotate through the operating component 2, the drive unit 3 can drive the transmission component 4 to rotate around the second rotation axis X2, thereby enabling the transmission component 4 to perform opening and closing operations on the circuit breaker. At the same time, the movement of the circuit breaker handle can also be transmitted to the drive unit 3 through the transmission component 4. Thus, when the circuit breaker is welded, after driving the circuit breaker handle to switch to the open state, the circuit breaker handle will tend to switch to the closed state. Driven by the circuit breaker handle, the transmission component 4 rotates, and the transmission component 4 drives the drive unit 3 to move and switch to the second state relative to the operating component 2, so that the locking pin 21 cannot be driven into the locking hole 10 at this time.

[0033] Specifically, the transmission component 4 has a first position and a second position relative to the base 1. When the circuit breaker is operating normally, if the transmission component 4 is in the first position, the circuit breaker handle is in the closed state. If the transmission component 4 is in the second position, the circuit breaker handle is in the open state. In this embodiment, when the circuit breaker handle changes from the open state to the closed state, the transmission component 4 moves from the second position to the first position. During this process, the transmission component 4 can drive the drive unit 3 to change to the second state, thus ensuring that the operating component 2 cannot be locked to the base 1 by the locking pin 21 when welding occurs in the circuit breaker.

[0034] In this embodiment, see Figure 3 As shown, the drive unit 3 includes a drive shaft 33, the axis of which is parallel to the first rotation axis X1 and the second rotation axis X2. The transmission component 4 has a slot 41, in which the drive shaft 33 is movably inserted. The linkage between the drive unit 3 and the transmission component 4 is achieved through the cooperation between the drive shaft 33 and the slot 41. Specifically, see [link to details]. Figure 8 , Figure 9 As shown, the slot 41 includes a first extension 411 extending along a first straight direction and a second extension 412 extending along a second straight direction, the first straight direction intersecting the second straight direction. The slot 41 also includes an intermediate section 413 connecting the end of the first extension 411 and the end of the second extension 412, the intermediate section 413 being arc-shaped.

[0035] In this embodiment, when the transmission member 4 is in the first position, the drive shaft 33 is located in the first extension section 411. When the transmission member 4 is in the second position, the drive shaft 33 is located in the second extension section 412. If the drive shaft 33 is in the first extension section 411, when the operator drives the drive unit 3 to rotate around the first rotation axis X1 through the operating member 2, the drive shaft 33 rotates around the first rotation axis X1. During this process, the drive shaft 33 will abut against one side of the groove wall of the first extension section 411 and slide along the groove wall, thereby driving the transmission member 4 to rotate. After the drive unit 3 rotates a certain angle, the drive shaft 33 disengages from the first extension section 411 and moves into the middle section 413. As the drive unit 3 continues to rotate, the drive shaft 33 enters the second extension section 412 along the middle section 413. In this embodiment, the first extension 411 and the second extension 412 form an obtuse angle. After the drive shaft 33 enters the second extension 412, as the drive unit 3 rotates, the drive shaft 33 can cooperate with the second extension 412 and continue to drive the transmission component 4 to rotate. If the drive shaft 33 is inside the second extension 412, when the operator rotates the operating component 2 in the opposite direction, the component movement conversion process is the opposite of the above process.

[0036] In this embodiment, the transmission component 4 includes a first transmission part 42 and a second transmission part 43 fixedly disposed. The first transmission part 42 and the second transmission part 43 are spaced apart along a length direction parallel to the second rotation axis X2. The first transmission part 42 is provided with a slot 41, and the second transmission part 43 is connected to the handle of the circuit breaker. In this embodiment, the transmission component 4 includes a drive groove 44 offset from the second rotation axis X2, and the handle of the circuit breaker is inserted into the drive groove 44. Specifically, the second transmission part 43 is provided with the drive groove 44, and the control of the circuit breaker handle is realized through the drive groove 44. In this embodiment, the circuit breaker handle is driven by the two groove walls oppositely disposed on both sides of the drive groove 44. In some preferred embodiments, the two groove walls used to drive the movement of the circuit breaker handle extend parallel to the first extension section 411 and the second extension section 412, respectively, to improve the linkage accuracy and stability. The above-mentioned "parallel" does not mean completely parallel, and a small angular deviation is allowed.

[0037] In this embodiment, the operating device is equipped with an elastic element 5, which provides the force required to drive the transmission element 4 from the second position to the first position. When the circuit breaker is operating normally, if the circuit breaker handle is in the open state, the resistance between the handle and the circuit breaker body can balance the driving force applied by the elastic element 5, thereby keeping the transmission element 4 stationary. When the circuit breaker handle changes from the open state to the closed state, the elastic element 5 can play a role in counteracting the resistance during the handle's movement, thus facilitating operation by the operator. However, when the circuit breaker is welded, the handle cannot maintain the stability of the transmission element 4, and the transmission element 4 moves to the first position under the dual drive of the elastic element 5 and the handle. In this embodiment, the elastic element 5 is a torsion spring disposed between the base 1 and the transmission element 4.

[0038] In some embodiments, one of the operating member 2 and the driving unit 3 is provided with a movable groove 22, and the other is provided with an insert 34. The extension range of the movable groove 22 is at a preset angle relative to the central angle of the first rotation axis X1. The insert 34 is movably inserted into the movable groove 22 so that the driving unit 3 can rotate relative to the operating member 2 within the preset angle range. Specifically, the range of motion of the insert 34 is limited by the two side walls of the movable groove 22. At the same time, when the groove wall of the movable groove 22 abuts against the insert 34, it can drive the operating member 2 and the driving unit 3 to rotate synchronously. Thus, the groove wall of the movable groove 22 and the insert 34 constitute the components of the driving structure that drives the driving unit 3 to rotate.

[0039] In this embodiment, the operating member 2 has a mounting cavity 23, and the driving unit 3 has a plug-in portion 313. The plug-in portion 313 is rotatably disposed in the mounting cavity 23 about a first rotation axis X1. A movable groove 22 is provided on the outer periphery of the mounting cavity 23, and an insert 34 is provided on the outer periphery of the plug-in portion 313. The rotation of the plug-in portion 313 is restricted by the cooperation between the movable groove 22 and the insert 34, thereby restricting the rotation of the driving unit 3 relative to the operating member 2. See also... Figure 5 , Figure 7 As shown, in this embodiment, the outer periphery of the insertion portion 313 is provided with a plurality of inserts 34 at intervals, and the outer periphery of the mounting cavity 23 is provided with a plurality of movable slots 22 at intervals, with the plurality of inserts 34 respectively inserted into the plurality of movable slots 22. Specifically, the drive unit 3 is provided with a plurality of inserts 34, and the operating member 2 is provided with three movable slots 22. This arrangement can improve the stability of the cooperation between the operating member 2 and the drive unit 3.

[0040] In this embodiment, the operating device includes a retaining member (not shown in the figure), which is disposed between the operating member 2 and the driving unit 3. The retaining member provides the force required to drive the driving unit 3 to transition to the first state. By providing the retaining member, the driving unit 3 can be maintained in the first state when no external force is applied, thereby ensuring that the locking pin 21 can work normally. However, when the circuit breaker is welded, the external force applied by the handle overcomes the force applied to the driving unit 3 by the retaining member, causing the driving unit 3 to rotate relative to the operating member 2. In some cases, when the operating member 2 is rotated, the retaining member can also play a driving role and drive the driving unit 3 to rotate relative to the base 1, and the retaining member is a component of the driving structure. In this embodiment, the retaining member is a leaf spring disposed between the operating member 2 and the driving unit 3.

[0041] In this embodiment, see Figure 6As shown, the drive unit 3 includes a first drive member 31 and a second drive member 32 fixedly disposed. The base 1 includes a mounting plate 11. The first drive member 31 and the second drive member 32 are respectively disposed on both sides of the mounting plate in the thickness direction. The first drive member 31 is located on the side of the mounting plate 11 facing the operating member 2, and the first drive member 31 is provided with a blocking part 311. The second drive member 32 is located on the side away from the operating member 2. The second drive member 32 is linked with the transmission member 4. Specifically, the drive shaft 33 is disposed on the second drive member 32.

[0042] In this embodiment, the operating component 2 has a closed position and an open position that can be switched by rotation. When the operating component 2 is switched from the closed position to the open position, it drives the transmission component 4 from the first position to the second position through the drive unit 3, thereby driving the circuit breaker handle to the open state. When the operating component 2 is switched from the open position to the closed position, it drives the transmission component 4 from the second position to the first position through the drive unit 3, thereby driving the circuit breaker handle to the closed state. In this embodiment, when the operating component 2 is in the open position, the locking pin 21 corresponds to the position of the locking hole 10 along the axial direction. At this time, if the circuit breaker is normal, the locking pin 21 can be driven to insert into the locking hole 10 to lock the operating component 2. However, if the circuit breaker is welded at this time, the blocking part 311 of the drive unit 3 blocks the locking pin 21 from inserting into the locking hole 10, so that the operator cannot lock the operating component 2, eliminating the safety hazard.

[0043] In this embodiment, the driving unit 3 is provided with a through hole 312, and a blocking part 311 is disposed on one side of the through hole 312. Specifically, the first driving member 31 is provided with a through hole 312. When the driving unit 3 is in the first state, see [reference needed]. Figure 4 As shown, the locking pin 21 corresponds to the position of the through hole 312 along the axial direction. When the drive unit 3 is in the first state and the operating member 2 is in the open position, the through hole 312 and the locking hole 10 are connected along the axial direction of the locking pin 21, and the locking pin 21 can pass through the through hole 312 and be inserted into the locking hole 10 along the axial direction. When the drive unit 3 is in the second state, the through hole 312 is offset from the locking pin 21 along the axial direction of the locking pin 21, and at this time, the blocking part 311 is blocked on one side of the locking pin 21.

[0044] In this embodiment, the second driving member 32 is provided with a clearance groove 321. When the driving unit 3 is in the first state and the operating member 2 is in the open position, the through hole 312, the locking hole 10, and the clearance groove 321 are sequentially connected along the axial direction of the locking pin 21. The locking pin 21 can pass through the through hole 312 and the locking hole 10 sequentially along the axial direction and be inserted into the clearance groove 321. In addition to clearance, the locking pin 21 can also cooperate with the clearance groove 321 to achieve self-locking between the operating member 2 and the driving unit 3, thereby maintaining the stability of the operating device.

[0045] In this embodiment, the operating member 2 is provided with a button 24 that can move along the axial direction of the locking pin 21. The button 24 is located on the side of the locking pin 21 away from the seat 1. The operator can press the button 24 to drive the locking pin 21 to move towards the seat 1.

[0046] In this embodiment, the operating component 2 is provided with a padlock hole 25, see [reference]. Figure 1 and Figure 3 As shown, multiple padlock holes 25 are provided. When button 24 is not pressed, button 24 is blocked on one side of the padlock hole 25, making it impossible to padlock. When button 24 is pressed, driving the locking pin 21 into the lock hole 10, button 24 is misaligned with the padlock hole 25, at which point padlock can be performed on it to lock the operating component 2 and prevent unauthorized personnel from operating it by mistake.

[0047] In summary, in this embodiment of the circuit breaker manual operation device, the operator can control the circuit breaker handle by rotating the operating component 2, thereby driving the drive unit 3 to rotate, which in turn drives the transmission component 4 to rotate. When welding occurs in the circuit breaker, the circuit breaker handle will drive the transmission component 4 to rotate, which in turn drives the drive unit 3 to rotate. This causes the drive unit 3 to switch to a second state due to the handle's operation, thereby causing the blocking part 311 to block one side of the locking pin 21, preventing the locking pin 21 from being inserted into the lock hole 10, avoiding the operator from engaging the lock, and eliminating safety hazards.

[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A manual operating device for a circuit breaker, comprising a base and an operating member rotatably mounted on the base about a first axis of rotation, the base having a locking hole, the operating member having a locking pin movable along its own axial direction, wherein when the locking pin is inserted into the locking hole, the operating member and the base are mutually locked, characterized in that... The operating device further includes: The driving unit, wherein the operating member is provided with a driving structure for driving the driving unit to rotate relative to the base about the first rotation axis, the driving unit has a blocking part, the driving unit is rotatably disposed relative to the operating member within a preset angle, the driving unit has a first state and a second state relative to the operating member, when in the first state, the blocking part is offset from the locking pin along the axial direction of the locking pin; when in the second state, the blocking part is blocked on the side of the locking pin moving towards the base; The transmission component is rotatably arranged around a second axis of rotation, the first axis of rotation and the second axis of rotation are parallel to each other, the transmission component is connected to the handle of the circuit breaker, and the transmission component is linked to the drive unit.

2. The circuit breaker manual operation device according to claim 1, characterized in that: The drive unit includes a drive shaft, the axis of which is parallel to the first axis of rotation and the second axis of rotation, respectively. The transmission component is provided with a slot, and the drive shaft is movably inserted into the slot.

3. The circuit breaker manual operation device according to claim 2, characterized in that: The slot includes a first extension segment extending along a first straight line direction and a second extension segment extending along a second straight line direction, the first straight line direction intersecting the second straight line direction, and the slot also includes an intermediate segment connected between the end of the first extension segment and the end of the second extension segment, the intermediate segment being arc-shaped.

4. The circuit breaker manual operation device according to claim 3, characterized in that: The transmission component has a first position and a second position. When it is in the first position, the circuit breaker handle is in the closed state and the drive shaft is located in the first extension section. When it is in the second position, the circuit breaker handle is in the open state and the drive shaft is located in the second extension section. And / or, the first extension and the second extension form an obtuse angle.

5. The circuit breaker manual operation device according to claim 1, characterized in that: The transmission component has a first position and a second position. When the transmission component moves from the second position to the first position, the circuit breaker handle changes from the open state to the closed state, and the drive unit changes to the second state.

6. The circuit breaker manual operation device according to claim 5, characterized in that: The operating device is provided with an elastic element, which is used to provide the force required to drive the transmission element from the second position to the first position.

7. The circuit breaker manual operation device according to claim 1, characterized in that: The operating device includes a retainer disposed between the operating member and the drive unit, the retainer being used to provide the force required to drive the drive unit to transition to the first state.

8. The circuit breaker manual operation device according to claim 1, characterized in that: One of the operating component and the driving unit is provided with a movable slot, and the other is provided with an insert. The central angle corresponding to the extension range of the movable slot around the first rotation axis is the preset angle. The insert is movably inserted into the movable slot so that the driving unit can rotate relative to the operating component within the preset angle range.

9. The circuit breaker manual operation device according to claim 8, characterized in that: The operating component has a mounting cavity, and the driving unit has a plug-in portion. The plug-in portion is rotatably disposed in the mounting cavity about the first rotation axis. The outer periphery of the mounting cavity is provided with the movable groove, and the outer periphery of the plug-in portion is provided with the insert. The outer periphery of the plug-in portion is provided with a plurality of inserts at intervals, and the outer periphery of the mounting cavity is provided with a plurality of movable slots at intervals, with the plurality of inserts respectively inserted into the plurality of movable slots.

10. The circuit breaker manual operation device according to claim 1, characterized in that: The transmission component includes a drive groove offset from the second axis of rotation, and the handle of the circuit breaker is inserted into the drive groove; And / or, the transmission component includes a first transmission part and a second transmission part fixedly disposed thereon, the first transmission part and the second transmission part being distributed at intervals along an extension direction parallel to the second rotation axis, the first transmission part being linked to the drive unit, and the second transmission part being connected to the handle of the circuit breaker.

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